FYI...
http://www.europe.redhat.com/documentation/mini-HOWTO/Partition/partition-4.php3#SWAPSIZE

"Currently, the maximum size of a swap partition is
architecture-dependent.
For i386 and PowerPC, it is approximately 2Gb."

We were testing on a 4X Zeon...
On our system we were able to observe 4GB of swap...
2GB original swap, 1GB swapfile and another 1GB
swapfile.

> 1. What is the amount of swap that should be
> configured?
Formula: total memory required for everything + ~2MB -
Physical Mem

> 2. Is it true that Linux swap should not exceed 4GB?
Opinion: yes.

> 3. Should the first swap partition be forced to be
> primary partition?
IMHO: Yes.  Avoid swap files.  Swap partitions are far
more efficient.

> 4. What version of RH 7.X is Advanced Server 2.1
> based on?
FYI:  RH AS 2.1 uses kernel 2.4.18-3smp (Red Hat 7.3
2.96-110)

My recommendation is establish a set of baseline
measurements with your application.  Avoid using SWAP.

The SMP kernel will support up to 4GB of memory. 
However the enterprise kernel supports up to 64GB of
memory through PAE.  PAE is a little slower than the
<4GB address space.  However, it is much faster than
swap.

To sum it up.  Keep the app and data running in
physical memory.  Swap is bad.

Good luck,
...Robert Vaughn

--- "Richardson, Robert" <[EMAIL PROTECTED]>
wrote:
> Hello,
> I am about to install Advanced Server 2.1 on a
> Compaq DL380.
> It is to become an Oracle DB Server.  
> Memory is 4.6GB.
> 
> Questions:
> 1. What is the amount of swap that should be
> configured?
> 2. Is it true that Linux swap should not exceed 4GB?
> 3. Should the first swap partition be forced to be
> primary partition?
> 4. What version of RH 7.X is Advanced Server 2.1
> based on?
> 
> 
> Thanks,
> Robert Richardson
> Activision Studios
> Unix System Administrator
>  
> 


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